The Computational and Biological Vision Group, led by Hüseyin Boyacı and Katja Doerschner is part of Aysel Sabuncu Brain Research Center and National Magnetic Resonance Research Center (UMRAM), and operates jointly with the Department of Psychology and the Neuroscience Graduate ProgramBilkent University. Research in the lab is focused on visual perception and its neuronal underpinnings. We use behavioral experimentation, neuroimaging (fMRI), and computational modeling to find answers to problems of vision science.

Here you can find out more about our projects.

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Recent News!
Six Master’s theses defended successfully!

Batuhan Erkat: Mapping Human Visual Cortex With Population Receptive Field Model: Tuning FMRI and Stimulus Parameters, and Exploring Receptive Field Sizes

Cemre Yilmaz: Effect of Visual Stimuli With Fearful Emotional Cue on Population Receptive Field Estimates

Ecem Altan: The Spatial Extent of Size Adaptation Effect in Peripheral Vision

Ilayda Nazli: The Effect of Orientation-Related Prior Probability Information on Contrast Perception

Cem Benar: Temporal and Spatial Nonlinearities in fMRI BOLD Response in Human Primary Visual Cortex

Hossein Mehrzadfar: Comparing the Performance of Humans and 3D-Convolutional Neural Networks in Material Perception Using Dynamic Cues

Congratulations Cemre, Batuhan, Ecem, Ilayda, Cem and Hossein for the fantastic job!

Save the dates! Six Master’s thesis dissertations in the first week of July, 2019

July 1: Cemre Yilmaz, Batuhan Erkat, Ecem Altan

July 2: Ilayda Nazli

July 4: Cem Benar, Hossein Mehrzadfar

Görkem Er successfully defended his Master’s thesis!

Gorkem defended his thesis entitled “The Role of Contrast and Size in Motion Perception: Behavioral and Neuroimaging Study of Center-Surround Interactions in Primary Visual Cortex (V1) and Middle Temporal Area (MT+) ” on September 13, 2018 at Aysel Sabuncu Brain Research Center. Please follow this link to see the abstract. We wish him good luck in his career!

Zahide Pamir successfully defended her PhD thesis!


Zahide defended her PhD thesis entitled “The Effect of Context-dependent Lightness on Contrast Detection and Identification, and Its Neural Correlates” on 19 October, 2017 at Aysel Sabuncu Brain Research Center. Please click here for the abstract. We wish her all the best and success in her future career!

CBVG was at ECVP 2017!


We as CBVG presented our work at ECVP 2017, Berlin. Please visit: for more information about our abstracts.